Sliding assy

Abstract

The invention relates to the short sliding assy (A) that forms the propeller shaft that adapts to narrow and limited volumes in the vehicle layout.

Description

[0001] SLIDING ASSY

[0002] TECHNICAL FIELD

[0003] The invention relates to a short sliding assy that forms the propeller shaft that adapts to narrow and limited volumes in the vehicle layout.

[0004] PRIOR ART

[0005] In vehicles, drivetrains are used to transmit rotational power from the engine or transmission systems to rotate one or more wheels. The propeller shaft transmits the torque and rotational motion resulting from the transmission of the power produced by the engine through the gearbox from one shaft to the other or to the differential in fixed or variable angular positions. The length of the propeller shaft varies depending on the relative distances of the elements to which it transmits power. The reduction of this distance means that the propeller shaft operates in a narrower volume, which creates a major restriction in the propeller shaft part designs.

[0006] The sliding assy is a part of the propeller shaft and provides power transmission of the propeller shaft. The said sliding assy consists of a tube yoke, a sleeve, a yoke shaft and a sealing elementsealing element. The yoke shaft, which is the element of the sliding assy that provides power transmission of the propeller shaft, currently has a spline diameter and the spline diameter is smaller than the ear outer side. Due to the fact that the sliding assy has this spline diameter, some disadvantages are encountered when the propeller shaft has to work in narrow and limited volumes. These disadvantages are that the propeller shaft cannot operate properly in the narrow and limited vehicle layout mentioned, and in addition, the design flexibility required for the propeller shaft to adapt to narrow spaces cannot be provided.

[0007] The application numbered RLI2180291 C2 for “Shortened Extensible Propeller Shaft”, which is in the state of the art, was encountered. In this application, the opening and closing distance is not the length of the sealing element surface, the distance on the sleeve-spline is the opening and closing distance of the propeller shaft and the remaining spline distance provides assembly and torque transfer. The patent application numbered RU2250840C1 for “Road Vehicle Propeller Shaft”, which is in the state of the art, has been encountered. This application concerns the manufacture of propeller shafts that can be used in automobiles, tractors and other vehicles, especially in structures where there are small distances between the interconnected units and between the joints of the propeller shafts, but the sealing element is connected to the sleeve and the working surface interacts with the sliding shaft.

[0008] The patent application numbered CN104290599A, “Duplex-fork Type Drive Structure of Internal-Combustion Balance Weight Type Forklift Drive System”, which is in the state of the art, has been encountered. In this application, while it is aimed to increase the bi-directional movement capability of forklifts by optimizing the propeller shaft system and to work more efficiently in narrow spaces, the sliding assy, spline spline forms, mounting slots and sealing elementsealing element are not mentioned.

[0009] The patent application for “Propeller shaft” numbered JP5856806B2, which is in the state of the art, has been encountered. This application aims to make the system more reliable and durable by controlling the pressure inside the propeller shafts and preventing dust or contaminants from coming from outside. It does not provide a solution to adapt to narrow and limited volumes.

[0010] As a result, all the problems mentioned above have made it necessary to make an innovation in the relevant field.

[0011] OBJECT OF THE INVENTION

[0012] The present invention is presented with the aim of eliminating the above-mentioned problems and making a technical innovation in the relevant field.

[0013] The main object of the invention is to present a short sliding assy structure that adapts to narrow and limited volumes in the vehicle layout.

[0014] Another object of the invention is to prevent negative and positive pressure that will occur during the assembly of the sliding assy by ensuring air circulation between the internal and external environment during the assembly of the said sliding assy. BRIEF DESCRIPTION OF THE INVENTION

[0015] The present invention is a sliding assy to achieve all the objects mentioned above and which will emerge from the detailed description below. A preferred embodiment of the invention is the short sliding assy forming the propeller shaft that adapts to narrow and limited volumes in the vehicle layout. Accordingly; it comprises a sleeve with an axially extending spline inner surface, a yoke shaft with an axially extending spline outer surface, a tube yoke connected to the said sleeve, and a sealing element connected to the yoke shaft to prevent foreign matter from entering the said sliding assy (A).

[0016] Another preferred embodiment of the invention comprises a sleeve mounting slot that enables the said sleeve to be connected to the tube yoke.

[0017] In another preferred embodiment of the invention, the said tube comprises a mounting shoulder that enables the connection of the tube yoke to the sleeve mounting slot.

[0018] In another preferred embodiment of the invention, it comprises a mounting shoulder having a mounting shoulder length configured to be smaller than the length of the sleeve mounting slot in order to ensure connection to the sleeve mounting slot.

[0019] In another preferred embodiment, the invention comprises a sleeve having a sleeve length configured to be greater than the length of the yoke shaft spline form in order to ensure that said sleeve and the yoke shaft move axially on each other.

[0020] In another preferred embodiment, the invention comprises a yoke shaft with a yoke shaft ear outer size configured to be smaller than the yoke shaft spline top diameter in order to ensure sliding movement of the sliding assy in narrow and limited volumes.

[0021] In the preferred alternative embodiment of the invention, the sliding shaft comprises a sealing element mounting slot in order to ensure the connection of the said sealing element to the yoke shaft.

[0022] In another preferred alternative embodiment of the invention, the said sealing element comprises at least two sealing lips that ensure the sealing of the sliding assy.

[0023] In another preferred embodiment, the invention comprises a sealing element working surface on the inner surface of the sleeve, with which the sealing lips come into contact to ensure sealing. In another preferred embodiment, the invention comprises a yoke shaft with a yoke shaft spline form length configured to be greater than the sealing element working surface length in order to provide sliding movement in narrow and limited volumes of the sliding assy.

[0024] In another alternative embodiment, the invention is that the tube yoke comprises a hole to ensure air circulation between the inner and outer environment during the assembly of the said sliding assy.

[0025] Another alternative embodiment is to comprise a primary bearing housing and a secondary bearing housing configured as holes opened for the bearing of the cross bearing in the mentioned tube yoke and yoke shaft in a manner suitable for the material staking method with segments and plastic deformation depending on the fixing method of the cross.

[0026] The scope of protection of the invention is stated in the claims and cannot be limited to what is described in this short and detailed description for the purpose of example. It is clear that a person skilled in the art can come up with similar structures in light of the above-mentioned without deviating from the main theme of the invention.

[0027] BRIEF DESCRIPTION OF FIGURES

[0028] In Figure 1 , it is given the perspective view of the sliding assy in disassembled state.

[0029] In Figure 2. a, it is given the perspective view of the sliding assy in assembled state.

[0030] In Figure 2.b, it is given the sectional view of the sliding assy in its assembled state.

[0031] In Figure 3. a, it is given the sectional view of the sliding assy in its closed position.

[0032] In Figure 3.b, it is given the sectional view of the sliding assy in its open position.

[0033] In Figure 4. a, it is given the cross-sectional view of a bearing housing suitable for snapring assembly.

[0034] In Figure 4.b, it is given the cross-sectional view of the bearing housing suitable for the material stacking method with plastic deformation.

[0035] In Figure 5. a, it is given the detailed view of the sliding assy in disassembled state. In Figure 5.b, it is given the sectional view of the sliding assy.

[0036] In Figure 6, it is given the yoke shaft image of the state of the art.

[0037] The drawings are not intended to limit the scope of protection defined in the claims and should not be referred to alone without reference to the technical description in the description of the present invention for the purpose of interpreting the scope defined in said claims. The said drawings are intended to describe the invention in a clear manner.

[0038] DESCRIPTION OF REFERENCE NUMBERS IN FIGURES

[0039] A. Sliding assy

[0040] 10. Sleeve

[0041] 1 1 . Inner surface

[0042] 12. Sleeve mounting housing

[0043] 13. Sealing element working surface

[0044] 20. Tube yoke

[0045] 21. Hole

[0046] 22. Mounting shoulder

[0047] 23. Primary bearing housing

[0048] 30. Yoke shaft

[0049] 31 . Outer surface

[0050] 32. Sealing element mounting housing

[0051] 33. Secondary bearing housing

[0052] 40. Sealing element

[0053] 41 . Sealing lip

[0054] Ls. Sealing element working surface length Ly. Yoke shaft spline form length

[0055] Lm. Sleeve mounting housing length

[0056] Ln. Mounting shoulder length

[0057] Lt. Sleeve length

[0058] E1 . Outer size of the yoke shaft ear of the state of the art

[0059] E2. Ear outer size

[0060] D1 . Yoke shaft spline top diameter of the state of the art

[0061] D2. Yoke shaft spline top diameter

[0062] DETAILED DESCRIPTION OF THE INVENTION

[0063] In this detailed description, the sliding assy (A) which is the subject of the invention is described with examples that will not form any limiting effect, only for a better understanding of the subject.

[0064] The subject of the invention relates to a short sliding assy (A) that forms a propeller shaft that adapts to narrow and limited volumes in the vehicle layout.

[0065] The perspective view of the sliding assy is given in Figure 1 . The sliding assy (A) is a part of the propeller shaft and is used in power transmission. The said sliding assy (A) consists of the tube yoke (20), the sleeve (10) combined with the tube yoke (20), the yoke shaft (30) and the sealing element (40) positioned on the yoke shaft (30).

[0066] The said sleeve (10) has a spline inner surface (11 ). There is a sleeve mounting housing (12) through which the said sleeve (10) is connected to the tube yoke (20). The connection of the mentioned tube yoke (20) to the mounting housing is provided by the mounting shoulder (22). Thanks to the mounting shoulder (22), the tube yoke (20) is connected by being placed in the mounting housing (12). As seen in Figures 5. a and 5.b, the mounting shoulder length (Ln) is configured to be smaller than the sleeve mounting housing (12) length (Lm). Thus, when the sleeve mounting housing (12) and the mounting shoulder (22) are mounted axially to each other, the sleeve mounting housing (12) and the mounting shoulder (22) are mounted / connected without colliding with each other. After the tube yoke (20) is mounted on the sleeve (10), it is fixed by welding. In the alternative embodiment, the fixing of the tube yoke (20) to the sleeve (10) is also provided by the gluing method. The fork form of the tube yoke (20) is shaped towards the outside of the sleeve (10) to facilitate the assembly of the cross (not shown in the figures).

[0067] The yoke shaft (30) has an yoke structure and has a spline outer surface (31 ). The said spline outer surface (31 ) and the spline inner surface (11 ) of the sleeve (10) interlock with each other and provide the connection of the yoke shaft (30) and the sleeve (10). By ensuring the connection of the yoke shaft (30) and the sleeve (10) with the spline-shaped outer surface (31 ) and the spline-shaped inner surface (1 1 ), the yoke shaft (30) and the sleeve (10) move by sliding axially on each other in the axial direction. The sliding movement of the yoke shaft (30) and the sleeve (10) on each other in the axial direction enables the sliding movement of the sliding assy (A) depending on the road conditions while the motor vehicle is running. As seen in Figures 5. a and 5.b, it comprises a sleeve length (Lt) configured to be greater than the yoke shaft spline form length (Ly) in order to ensure axial movement of the said yoke shaft (30) and the sleeve (10) on each other. In order for the sliding assy to be able to perform sliding movement in narrow and limited spaces, the outer ear size (E2) of the yoke shaft (30) is smaller than the spline top diameter (D2) of the yoke shaft.

[0068] A sealing element (40) is used to prevent foreign matter from entering the sliding assy (A) from the working environment of the motor vehicle. The said sealing element (40) is connected to the sealing element mounting housing (32) created on the outer diameter of the yoke shaft (30). There are at least two sealing lips (41 ) on the sealing element (40). The said sealing lips (41 ) provide sealing by contacting the sealing element working surface (13) on the sleeve (10). In order for the sliding assy to be able to perform sliding movement in narrow and limited volumes, the sealing element working surface length (Ls) is smaller than the yoke shaft spline form length (Ly) as seen in Figures 5. a and 5.b. In Figure 6, it is given the appearance of the yoke shaft spline top diameter (D1 ) of the state of the art. In order for the propeller shaft to adapt to narrow and limited volumes, the yoke shaft spline top diameter (D2) is larger than the yoke shaft spline top diameter (D1 ) of the state of the art, and likewise, the outer ear size (E2) of the yoke shaft (30) is larger than the outer ear size (E1 ) of the yoke shaft of the state of the art. The holes opened in the ears of the tube yoke (20) and the yoke shaft (30) are called bearing housings (23, 33). The primary bearing housing (23) is the holes opened in the ears of the tube yoke (20), while the secondary bearing housing (33) is the holes opened in the ears of the yoke shaft (30). The cross bearing (not shown in the figures) is mounted in the mentioned bearing housings (23, 33). Depending on the bearing type of the cross bearing in the primary and secondary bearing housing (23, 33), there are two different designs as the ring and material staking methods by plastic deformation, as seen in Figures 4.a and 4.b.

[0069] Thanks to the sliding movement of the sliding assy (A), torque transmission is provided smoothly despite the relative position changes between the underbody parts at the front and rear of the vehicle depending on the road conditions while the motor vehicle is running. The assembled views of the sliding assy are given in Figures 2. a and 2.b. During the assembly of the sliding assy (A), the sliding movement must be carried out by manpower. During the assembly of the sliding assy (A), it is very difficult to perform the sliding movement by manpower due to the pressure of the air compressed in the inner volume of the sleeve (10), tube yoke (20) and yoke shaft (30). As seen in Figures 3. a and 3.b, the hole (21 ) opened on the tube yoke (20) prevents the negative and positive pressure that will occur during the assembly of the sliding assy (A) by providing air circulation between the inner and outer environment of the sliding assy (A). Thus, during assembly, the sliding movement of the sliding assy (A) is provided by manpower. The sliding assy (A) is closed with a cover to prevent foreign matter from entering through the mentioned hole (21 ).

[0070] The scope of protection of the invention is specified in the claims given in the appendix and cannot be limited to what is described in this detailed description for the purpose of example. Because it is obvious that a person skilled in the art can present similar structures in the light of what is described above without deviating from the main theme of the invention.

Claims

CLAIMS1 . The invention is a short sliding assy (A) that forms the propeller shaft that adapts to narrow and limited volumes in the vehicle layout, characterized by; comprising:• A sleeve (10) with a spline-shaped inner surface (1 1 ) extending axially,• A yoke shaft (30) with a spline-shaped outer surface (31 ) extending axially,• A tube yoke (20) connected to the said sleeve (10),• A sealing element (40) connected to the yoke shaft (30) to prevent foreign matter from entering the said sliding assy (A).

2. A sliding assy (A) according to claim 1 , wherein; it comprises a sleeve mounting housing (12) that enables the connection of the said sleeve (10) to the tube yoke (20).

3. A sliding assy (A) according to claim 2, wherein; it comprises a mounting shoulder (22) that enables the connection of the said tube yoke (20) to the sleeve mounting housing (12).

4. A sliding assy (A) according to claim 2 or 3, wherein; it comprises a tube yoke (20) that includes a mounting shoulder (22) having a mounting shoulder length (Ln) configured to be smaller than the sleeve mounting housing length (Lm) and that enables connection to the sleeve mounting slot (12).

5. A sliding assy (A) according to claim 1 , wherein; it comprises a sleeve (10) having a sleeve length (Lt) configured to be greater than the yoke shaft spline form length (Ly) in order to ensure that said sleeve (10) and the yoke shaft (30) move axially on each other.

6. A sliding assy (A) according to claim 1 , wherein; it comprises a yoke shaft (30) having a yoke shaft ear outer size (E2) configured to be smaller than the yoke shaft spline top diameter (D2) in order to provide sliding movement in narrow and limited volumes.

7. A sliding assy (A) according to claim 1 , wherein; it comprises a sealing element mounting housing (32) for the sliding shaft (30) to ensure the connection of the said sealing element (40) to the yoke shaft (30).

8. A sliding assy (A) according to claim 1 , wherein; the said sealing element (40) comprises at least two sealing lips (41 ) that ensure the sealing of the sliding assy (A).

9. A sliding assy (A) according to claim 8, wherein; it comprises a sealing element working surface (13) on the inner surface of the sleeve (1 1 ) with which the sealing lips (41 ) come into contact to ensure sealing.

10. A sliding assy (A) according to claim 1 or 9, wherein; it comprises a yoke shaft (30) having a yoke shaft spline form length (Ly) configured to be greater than the sealing element working surface length (Ls) in order to ensure sliding movement in narrow and limited volumes of the sliding assy.1 1 .A sliding assy (A) according to claim 1 , wherein; the tube yoke (20) comprises a hole (21 ) to ensure air circulation between the inner and outer environment during the assembly of said sliding assy (A).

12. A sliding assy (A) according to claim 1 , wherein; it comprises a primary bearing housing (23) and a secondary bearing housing (33) configured as holes opened for the bearing of the cross bearing in the said tube yoke (20) and the yoke shaft (30) in a way that is suitable for the material staking method with segments and plastic deformation depending on the fixing method of the cross.

Images